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Supplemental Financial Information (Accrued Payroll and Benefits) (Details) (USD $)
In Thousands, unless otherwise specified
Jul. 02, 2013
Jan. 01, 2013
Supplemental Financial Information [Abstract]    
Accrued payroll and related liabilities $ 3,024 $ 2,537
Accrued bonus 2,527 1,981
Insurance liabilities 1,148 827
Accrued payroll and benefits $ 6,699 $ 5,345